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Kaelyn Johnson, MPH, R.D.

Kaelyn Johnson, MPH, R.D.

Kaelyn Johnson is a Registered Dietitian from Southern California who has worked as a clinical dietitian and is now a freelance writer. She has written for WebMD, produced an e-book, and written case studies for healthcare practitioners.

A Japanese meal laid out on a linen mat: a bowl of rice, simmered vegetables with carrot and mushroom, cucumber pickles and a bowl of miso soup with tofu.
Longevity, Nutrition September 20, 2026 October 13, 2026

7 Japanese Longevity Habits Worth Borrowing—and What the Research Actually Says

Green tea, interval walking, ikigai, forest bathing. Seven habits from Japanese research, with the finding kept separate from what you can reasonably take from it.

Whole and halved lemons on a wet green leaf
Nutrition, Wellness September 14, 2026 October 23, 2026

This is What Happens When You Drink Lemon Water Every Day

Lemon water is credited with better digestion, clearer skin, weight loss and a detoxed body. Here is what a daily glass can realistically do, where the evidence gets thin, and how to drink it without upsetting your teeth or stomach.

Nutrition, Wellness September 6, 2026 September 6, 2026

Non-Toxic Kitchen Essentials: How to Make Your Kitchen Toxic-Free

Remember when we were growing up and we never really thought about things in our house being “toxic” as much as we do today….

microplastics replacement
Nutrition, Wellness August 26, 2026 September 29, 2026

Microplastics Are Everywhere! Here’s What To Ditch (And Replace) ASAP

Microplastics have been found in human blood, lungs, and breast milk. Here’s a room-by-room guide to the biggest sources in your home — and exactly what to swap them with.

Bowls of beans, lentils, and whole foods that support steady blood sugar
Articles, Healthiest & Unhealthiest, Nutrition August 24, 2026 October 20, 2026

The 10 Best Foods for Blood Sugar, Ranked by the Evidence

Ten foods with real human trials behind their blood sugar reputation, ranked by evidence strength. Beans take first. Cinnamon gets a demotion.

Close-up of a white quilted mattress surface and layers
Sleep July 10, 2026 August 5, 2026

Cooling Mattresses vs. Cooling Toppers: Where to Spend Your Money

The five-year test that settles the topper-or-new-mattress question, plus three verified picks for each route and the math behind the rule.

Nutrition, Wellness June 12, 2026 June 23, 2026

Coconut Water May Not Be for Everyone: 6 Types of People Who Should Avoid It

“Water is still the best way to hydrate,” says Maxine Smith, RDN, LD, a registered dietitian at the Cleveland Clinic. Coconut water has earned…

Bottled smoothies and juices with health-focused labels, several carrying more sugar than a candy bar
Articles, Nutrition June 6, 2026 August 27, 2026

6 ‘Health Foods’ With More Sugar Than a Candy Bar

We pulled the manufacturers’ own nutrition labels on five health-halo products. Every one meets or beats a full-size Snickers on sugar.

Woman in her sixties laughing outdoors in a sunlit forest, wearing a gray tank top
Articles, Nutrition June 4, 2026 October 25, 2026

9 Best Vitamins and Supplements for Women in Their 60s

Nine supplements ranked by the evidence for women in their 60s, with the recommended amounts, the trials behind each one, and who should skip them.

clean eating salad bowl — 7-day clean eating meal plan
Nutrition, Recipes June 4, 2026 June 15, 2026

7-Day Clean Eating Meal Plan

Clean eating is one of those things where you kind of know it when you see it. You don’t have to stick to counting…

weight loss cheat sheet
Exercise, Longevity, Nutrition May 26, 2026 September 26, 2026

The Ultimate Weight Loss Cheat Sheet

Apparently there’s such a thing as “too much information.” And finding a simple, coherent and simple answer to the question “How do I lose…

magnesium deficiency in women
Nutrition, Wellness May 18, 2026 September 29, 2026

The Sneaky Symptoms of Magnesium Deficiency in Women, According to Dietitians

Eye twitches, insomnia that won’t break, migraines, period cramps — the sneaky signs of magnesium deficiency in women, and what 3 registered dietitians do about them.

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